Building with clay
Key topics and advantages
e4 – building a house with a clear conscience
e4 terrace houses in Belgium
Visit of the Belgian Minister of Energy to the construction site © Studio Claerhout
Sustainable living in the heart of the city
The Sustainable Compound is an e4 project to extend the living accommodation in Waregem, making use of existing open spaces, in which the efforts put into sustainability and affordability are spread over a cluster of seven individual houses.
With this pilot project, Wienerberger Belgium wants to demonstrate two claims.
A sustainable living project meeting BREEAM Excellent sustainability criteria can be realised at optimal cost, taking into account not only the initial investment, but also the long-term maintenance costs and savings compared to a standard newly-built house.
The traditional Belgian building methods, with the established Wienerberger materials and traditional construction partners, are perfect for the realisation of affordable projects with a long life time without compromising on quality and aesthetics.
Besides the energy aspect, the sustainability criteria relate to water management on the site and in the houses, the materials to be used, thermal and acoustic comfort, green management, etc. - always bearing in mind the affordability and the time needed to recover the costs of the chosen solutions.
With this broad approach the advantages of individual houses are retained. The efforts put into sustainability and affordability are spread over a cluster of seven individual houses.
Clever design choices
Research, in collaboration with energy consultant 3E, also indicated that achieving optimal cost in constructing energy efficient buildings depends on a number of clever choices: a heavily insulated massive construction, airtightness to the best level achievable in practice, and robust solutions rather than expensive technology. In short, the energy efficient construction starts with a clever design.
Primary energy consumption for heating:
7436 kWh prim/year
Net energy consumption for heating:
-477 kg CO
Construction costs excl. VAT - end house:
Construction costs excl. VAT - terrace house:
Koramic Bellus slate engobe ceramic slates + Koramic Fleece Plus underlay
Terca Eco-brick Linnaeus braised, glued
Exterior walls of dormer window:
Koramic Façatile slate engobe clay tiles + Koramic Fleece Plus underlays
Porotherm PLS 500, glued
External ground surfacing:
Water permeable Wienerberger clay pavers
Building services & heating technology
Supplementary energy: solar panels (21 panels/house)
Condensing boiler - 12kW
Type D ventilation with heat recovery
The Sustainable Compound, a compound of seven houses in Waregem, Belgium
ERIBO BUILDING & IMMO, Waregem
Wielfaert Architecten, Waregem
Fris in het Landschap, Ghent
3E (consultant on renewable energy and BREEAM assessor)
The e4 Sustainable Compound – The culmination of ecological and economical living.
Related expertise articles
Read about the e4 brick house concept
The e4 principles
First e4 brick house in Austria
e4 single-family house in Romania
e4 day care center in Germany
e4 single-family house in Germany
e4 multi-family house in France
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